I\'m using AdHoc deploy to deploy my app on an iPad, and I get this error. I\'ve checked out a few questions in SO that say the same, but the solution has always been restart XC
I had the same error - I not only restarted my device, but also deleted the app on my device and cleaned the build directory (product --> clean on Xcode 4).
I then built and ran the program again and it worked.